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Full Discussion: Using AWK for ping and print..
Top Forums UNIX for Dummies Questions & Answers Using AWK for ping and print.. Post 84960 by vgersh99 on Thursday 29th of September 2005 04:58:28 PM
Old 09-29-2005
Code:
#!/bin/ksh

hosts='/etc/hosts'

while read ip host theRest
do
   ping "${ip}" 1>/dev/null 2>&1
   [[ "${?}" -eq 0 ]] && echo "${ip} is alive ${host} ${theRest}"
done < "${hosts}"

 

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LEARN ABOUT REDHAT

debugreiserfs

DEBUGREISERFS(8)					      System Manager's Manual						  DEBUGREISERFS(8)

NAME

       debugreiserfs

SYNOPSIS

       debugreiserfs [ -dDJmoqpS ] [ -j device ] [ -B blocknumber ]

       device

DESCRIPTION

       It helps sometimes to solve problems with reiserfs filesystems. Being called w/o options it prints super block of reiserfs filesystem found
       on the device.

       device is the special file corresponding to the device (e.g /dev/hdXX for IDE disk partition or /dev/sdXX for SCSI disk partition).

OPTIONS

       -j device
	      print contents of journal. Also with the option -p it allows to pack journal into archive with other metadata

       -J     print journal header.

       -d     print formatted nodes of the internal tree of the filesystem

       -D     print formatted nodes of all used blocks of the filesystem

       -m     print contents of bitmap (not very useful)

       -o     print objectid map (not very useful)

       -1 blocknumber
	      print specified block of the filesystem

       -p     Makes debugreiserfs to find filesystem metadata This option exists to help reiserfsck debugging.	If  reiserfsck	fails  -  you  may
	      extract  filesystem metadata with debugreiserfs -p /dev/xxx |gzip -c > xxx.gz. We download that data and make the filesystem similar
	      to your with gunzip -c xxx.gz | unpack /dev/xxx (unpack is included into reiserfsprogs package). This usually  allows  to  reproduce
	      and debug the problem quickly. When data file is not too large.

       -S     When  -S	is not specified -p deals with blocks marked used in the filesystem bitmap. With this option set they will work with whole
	      device.

       -q     Suppress showing speed of progress when -p is in use

AUTHOR

       This version of debugreiserfs has been written by Hans Reiser <reiser@idiom.com>.

BUGS

       There are probably few of them. Please, report bugs to ReiserFS mail-list <reiserfs-list@namesys.com>.

SEE ALSO

       reiserfsck(8), mkreiserfs(8)

Reiserfsprogs 3.6.4						   January 2002 						  DEBUGREISERFS(8)
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